Q1) A hot cup coffee always cools down when left in room conditions. Would heating of yourcup of coffee by extracting energy from the cold air violate the 1st law of Thermodynamics?Explain very brieflyQ2) Two different piston- cylinder devices each contain 1 kg of air. Initially, the temperature T =300 K and pressure P= 100 kPa of the gases are both the same in both cylinders. However, oneof the cylinders is insulated and the other is not.

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Q1) A hot cup coffee always cools down when left in room conditions. Would heating of your cup of coffee by extracting energy from the cold air violate the 1st law of Thermodynamics? Explain very briefly

Q1) A hot cup coffee always cools down when left in room conditions. Would heating of your cup of coffee by extracting energy from the cold air violate the 1st law of Thermodynamics? Explain very briefly

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter1: Heat, Temperature, And Pressure

Section: Chapter Questions

Problem 6RQ: One British thermal unit will raise the temperature of _____ 1b of water _____F.

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